Agreed, I don’t believe a system like that can access the platonic realm of mathematical truths. It’s clear that an electron doesn’t carry the laws of physics with it as it travels.
Something is orchestrating the decisions that the brain executes in the conscious realm though. (As opposed to or in contrast to the mathematical realm and the realm of the physical laws). We are clearly surrounded by invisible realms, unless you believe electrons are carrying lookup tables of how to respond to invisible electric fields.